The Jefferson Salamander, Ambystoma jeffersonianum, is an amphibian that lives in moist woodlands. It eats insects, worms, snails, slugs, and other invertebrate species. Their size ranges from four and a half to seven inches long and they are dark in color. Young individuals may have silvery-blue spots on their sides. In the spring, mature females lay eggs in shallow water which hatch in roughly one month. The young salamanders have gills and a large tail fin allowing them to move through the water and within a few weeks, they develop front legs and hind limbs. When they reach three to five centimeters long, they transform into their adult form and leave the water.